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-rw-r--r--src/out_flattener.cpp187
1 files changed, 0 insertions, 187 deletions
diff --git a/src/out_flattener.cpp b/src/out_flattener.cpp
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--- a/src/out_flattener.cpp
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-/*
- * This file is part of gerbolyze, a vector image preprocessing toolchain
- * Copyright (C) 2021 Jan Sebastian Götte <gerbolyze@jaseg.de>
- *
- * This program is free software: you can redistribute it and/or modify
- * it under the terms of the GNU Affero General Public License as published by
- * the Free Software Foundation, either version 3 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU Affero General Public License for more details.
- *
- * You should have received a copy of the GNU Affero General Public License
- * along with this program. If not, see <https://www.gnu.org/licenses/>.
- */
-
-#include <cmath>
-#include <algorithm>
-#include <string>
-#include <iostream>
-#include <iomanip>
-#include <gerbolyze.hpp>
-#include <svg_import_defs.h>
-#include <svg_geom.h>
-#include "polylinecombine.hpp"
-
-using namespace gerbolyze;
-using namespace std;
-
-static void polygon_to_cavc (const Polygon &in, cavc::Polyline<double> &out) {
- for (auto &p : in) {
- out.addVertex(p[0], p[1], 0);
- }
- out.isClosed() = true; /* sic! */
-}
-
-static void cavc_to_polygon (const cavc::Polyline<double> &in, Polygon &out) {
- for (auto &p : in.vertexes()) {
- out.emplace_back(d2p{p.x(), p.y()});
- }
-}
-
-namespace gerbolyze {
- class Flattener_D {
- public:
- vector<cavc::Polyline<double>> dark_polys;
- vector<cavc::Polyline<double>> clear_polys;
-
- void add_dark_polygon(const Polygon &in) {
- polygon_to_cavc(in, dark_polys.emplace_back());
- }
-
- void add_clear_polygon(const Polygon &in) {
- polygon_to_cavc(in, clear_polys.emplace_back());
- }
- };
-}
-
-Flattener::Flattener(PolygonSink &sink) : m_sink(sink) {
- d = new Flattener_D();
-}
-
-Flattener::~Flattener() {
- delete d;
-}
-
-void Flattener::header(d2p origin, d2p size) {
- m_sink.header(origin, size);
-}
-
-void Flattener::render_out_clear_polys() {
- for (auto &sub : d->clear_polys) {
- vector<cavc::Polyline<double>> new_dark_polys;
- new_dark_polys.reserve(d->dark_polys.size());
-
- for (cavc::Polyline<double> cavc_in : d->dark_polys) {
- auto res = cavc::combinePolylines(cavc_in, sub, cavc::PlineCombineMode::Exclude);
-
- if (res.subtracted.size() == 0) {
- for (auto &rem : res.remaining) {
- new_dark_polys.push_back(std::move(rem));
- }
-
- } else { /* custom one-hole deholing code */
- assert (res.remaining.size() == 1);
- assert (res.subtracted.size() == 1);
-
- auto &rem = res.remaining[0];
- auto &sub = res.subtracted[0];
- auto bbox = getExtents(rem);
-
- cavc::Polyline<double> quad;
- quad.addVertex(bbox.xMin, bbox.yMin, 0);
- if (sub.vertexes()[0].x() < sub.vertexes()[1].x()) {
- quad.addVertex(sub.vertexes()[0]);
- quad.addVertex(sub.vertexes()[1]);
- } else {
- quad.addVertex(sub.vertexes()[1]);
- quad.addVertex(sub.vertexes()[0]);
- }
- quad.addVertex(bbox.xMax, bbox.yMin, 0);
- quad.isClosed() = true; /* sic! */
-
- auto res2 = cavc::combinePolylines(rem, quad, cavc::PlineCombineMode::Exclude);
- assert (res2.subtracted.size() == 0);
-
- for (auto &rem : res2.remaining) {
- auto res3 = cavc::combinePolylines(rem, sub, cavc::PlineCombineMode::Exclude);
- assert (res3.subtracted.size() == 0);
- for (auto &p : res3.remaining) {
- new_dark_polys.push_back(std::move(p));
- }
- }
-
- auto res4 = cavc::combinePolylines(rem, quad, cavc::PlineCombineMode::Intersect);
- assert (res4.subtracted.size() == 0);
-
- for (auto &rem : res4.remaining) {
- auto res5 = cavc::combinePolylines(rem, sub, cavc::PlineCombineMode::Exclude);
- assert (res5.subtracted.size() == 0);
- for (auto &p : res5.remaining) {
- new_dark_polys.push_back(std::move(p));
- }
- }
- }
- }
-
- d->dark_polys = std::move(new_dark_polys);
- }
- d->clear_polys.clear();
-}
-
-Flattener &Flattener::operator<<(GerberPolarityToken pol) {
- if (m_current_polarity != pol) {
- m_current_polarity = pol;
-
- if (pol == GRB_POL_DARK) {
- render_out_clear_polys();
- }
- }
-
- return *this;
-}
-
-Flattener &Flattener::operator<<(const LayerNameToken &layer_name) {
- flush_polys_to_sink();
- m_sink << layer_name;
- cerr << "Flattener forwarding layer name to sink: \"" << layer_name.m_name << "\"" << endl;
-
- return *this;
-}
-
-Flattener &Flattener::operator<<(const Polygon &poly) {
- if (m_current_polarity == GRB_POL_DARK) {
- d->add_dark_polygon(poly);
-
- } else { /* clear */
- d->add_clear_polygon(poly);
- render_out_clear_polys();
- }
-
- return *this;
-}
-
-void Flattener::flush_polys_to_sink() {
- *this << GRB_POL_DARK; /* force render */
- m_sink << GRB_POL_DARK;
-
- for (auto &poly : d->dark_polys) {
- Polygon poly_out;
- for (auto &p : poly.vertexes()) {
- poly_out.emplace_back(d2p{p.x(), p.y()});
- }
- m_sink << poly_out;
- }
-
- d->clear_polys.clear();
- d->dark_polys.clear();
-}
-
-void Flattener::footer() {
- flush_polys_to_sink();
- m_sink.footer();
-}
-